In the lush landscapes of West Java, Indonesia, the threat of landslides looms large, particularly in densely populated areas like West Bandung Regency. Recent research led by Wira Cakrabuana from Institut Teknologi Bandung has shed light on the stability of andesite slopes in the Gunung Batu and Graha Puspa areas, which are not only geological wonders but also popular tourist destinations. Published in ‘Rudarsko-geološko-naftni Zbornik’ (Journal of Mining, Geology and Petroleum), this study employs sophisticated methods to assess the landslide potential in a region that grapples with seismic activity and heavy rainfall.
The research utilized rock mass rating (RMR) and slope mass rating (SMR) to evaluate the slopes’ stability. Cakrabuana’s team found that the andesite slopes possess RMR values between 74 and 81, indicating a good to very good rock mass quality. This information is crucial for construction projects in the area, as it suggests that the rock is suitable for various engineering applications. “Understanding the rock mass quality allows us to design safer and more efficient structures, which can significantly reduce risks for both workers and the public,” Cakrabuana noted.
The study also identified specific slopes that may be vulnerable to toppling or wedge failures. With SMR values ranging from 72 to 96, the slopes are categorized as class I-II, indicating a low probability of failure. This assessment is particularly valuable for construction companies and urban planners, as it provides a framework for evaluating site safety before embarking on new projects.
To enhance slope stability, the study recommends minor reinforcement measures such as scaling, toe ditches, fences, and spot bolting. These interventions are not only cost-effective but also essential in mitigating potential hazards. “By implementing these minor reinforcements, we can significantly enhance the safety of the slopes, ensuring that both infrastructure and tourism can thrive in this region,” Cakrabuana emphasized.
Given West Java’s susceptibility to seismic and rainfall risks, the researchers advocate for further modeling that incorporates variations in seismic acceleration and water content. This approach could lead to more precise safety factors and cut-off values under different slope conditions, ultimately improving the management of landslide risks. The implications of this research extend beyond mere academic interest; it provides actionable insights for the construction sector, where safety and stability are paramount.
As the region continues to develop, the findings from this study could shape future construction practices, ensuring that they are not only economically viable but also environmentally responsible. The work of Cakrabuana and his team highlights the importance of integrating scientific research into practical applications, paving the way for safer infrastructure in areas prone to natural hazards. For more information on this research, visit Institut Teknologi Bandung.
